Claude Opus 4.5 vs Nova Pro 1.0 (Comparative Analysis)
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Comparative Analysis: Claude Opus 4.5 vs. Nova Pro 1.0
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Overview
Nova Pro 1.0 was released 11 months before Claude Opus 4.5.
 Claude Opus 4.5 |  Nova Pro 1.0 | |
|---|---|---|
Model Provider The organization behind this AI's development | Anthropic | Amazon |
Input Context Window Maximum input tokens this model can process at once | 200K tokens | 300K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 64K tokens | 5.1K tokens |
Release Date When this model first became publicly available | November 24, 2025 8 months ago November 24th, 2025 | December 5, 2024 1 year ago December 5th, 2024 |
Knowledge Cutoff Latest training-data date reported by the provider | Not reported | October 31, 2024 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
Claude Opus 4.5 | Nova Pro 1.0 | |
|---|---|---|
Input Types Supported input formats | 📁File🖼️Image📝Text | 📝Text🖼️Image |
Reasoning Controls Defaults and configurable reasoning effort | Optional | Not reported |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | Claude | Nova |
Key Features Advanced capabilities | ✓Function Calling✓Structured Output✓Reasoning Mode✓Content Moderation | ✓Function CallingStructured OutputReasoning Mode✓Content Moderation |
Pricing
Claude Opus 4.5 is roughly 6.3x more expensive compared to Nova Pro 1.0 for input tokens and roughly 7.8x more expensive for output tokens.
| Claude Opus 4.5 | Nova Pro 1.0 | |
|---|---|---|
Input Token Cost Cost per million input tokens | $5.00 per million tokens | $0.80 per million tokens |
Output Token Cost Cost per million output tokens | $25.00 per million tokens | $3.20 per million tokens |
Web Search Cost Additional cost for each web search operation | $0.01 per search | Not specified |
Cache Read Cost Cost to reuse cached input tokens | $0.50 per million tokens | Not specified |
Cache Write Cost Cost to write input tokens to the cache | $6.25 per million tokens | Not specified |
1-Hour Cache Write Cost Cost to cache input tokens for one hour | $10.00 per million tokens | Not specified |
Benchmarks
Compare relevant benchmarks between Claude Opus 4.5 and Nova Pro 1.0.
| Claude Opus 4.5 | Nova Pro 1.0 | |
|---|---|---|
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,272 Elo (#27 in UI Component (58.5% win rate)) | 818 Elo (#122 in Website (21.4% win rate)) |
At a Glance
Quick overview of what makes Claude Opus 4.5 and Nova Pro 1.0 unique.
Claude Opus 4.5 by Anthropic understands both text and images, can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 200K token context window. Premium pricing at $5.00/M input and $25.00/M output tokens. Includes built-in content moderation for safer outputs. Released November 24th, 2025.Nova Pro 1.0 by Amazon understands both text and images, can use external tools and APIs. It can handle standard conversations with its 300K token context window. Reasonably priced at $0.80/M input and $3.20/M output tokens. Includes built-in content moderation for safer outputs. Released December 5th, 2024.Explore More Comparisons
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Compare Nova Pro 1.0 with:
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🎨Creative & Roleplay
Models optimized for creative writing
📢Marketing
Content creation and marketing tasks
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Technical analysis and explanations
🔬Science
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